Hello all. I am trying to get this to work without any luck. First off, I don't see which arduino was originally used here. I am using a Duemilanove with the current KSP update and the newest version of KSPSerialIO. I am also using the current versions of Kethane and Mechjeb2. Here is the log: [LOG 15:08:35.334] AddonLoader: Instantiating addon 'KSPSerialPort' from assembly 'KSPSerialIO' [LOG 15:08:35.340] KSPSerialIO: Version 0.15.2 [LOG 15:08:35.341] KSPSerialIO: Getting serial ports... [LOG 15:08:35.343] KSPSerialIO: Output packet size: 165/255 [LOG 15:08:35.348] KSPSerialIO: Found 2 serial ports [LOG 15:08:35.350] KSPSerialIO: trying default port [LOG 15:08:35.353] Error opening serial port : Object reference not set to an instance of an object [LOG 15:08:35.356] KSPSerialIO: trying port \Device\VCP0 - COM3 [LOG 15:08:39.425] KSPSerialIO: KSP Display not found [LOG 15:08:39.428] AddonLoader: Instantiating addon 'KSPSerialIO' from assembly 'KSPSerialIO' So every time I load up a vessel on the launch pad there is a longer than usual load time. I added some code to the arduino so that one of the LEDs will turn on and then off when the arduino first turns on. During this loading time that LED is flashes twice(sometimes three times) making me think that my arduino is restarting while it is loading. In the end it always says "no display found" at the top right. Since the log and that message are showing information, I assume that the problem is on the side of the arduino. Now I don't actually have an LCD/LED display connected to the arduino since that is not my end goal. Since it is having problems with the com port I assume that by "no display found" it actually means "Arduino not found". Can someone confirm that for me? I got this to work once, but that was after a few hours of messing with it and it wouldn't work immediately after. Any help would be greatly appreciated. Thanks in advance.